JPH03110221A - Bucket used exclusively for sieve - Google Patents

Abstract

PURPOSE:To make it possible to sieve a mixture in the earth by overlapping a plurality of steel bars forming fork members into similar figures in a horizon tal J shape, and forming sharp sections to each of the ends together as a unit. CONSTITUTION:Fork members 11, 11,... of which a fork section 1 is constituted are formed in a horizontal J shape, and a plurality of steel bars 11a, 11b,... forming the fork members into similar figures are overlapped up and down, and important points are welded 12, 12,... together as a unit. Sharp sections 13, 13,' chipped downward are respectively formed to each of the ends of them. After that, the fork members 11, 11,... are arranged between both right and left side plates 2 and 2 at intervals corresponding to sizes of natters to be sieved, the upper parts of them are extended to the edge of the lower end of the ceiling board 3 or the rear thereof, and then they are welded together as a unit.

Description

Detailed Description of the Invention (Object of the Invention) This invention can be used at construction sites, quarries, or agricultural fields.
This is a bucket for sifting out objects of a certain size or larger mixed in soil at U-fields, etc., and since it is a special purpose machine with limited uses, it has a particularly simple structure and can be provided at low cost. The purpose is to provide a sieve-only bucket with a new structure.

(Prior art) Objects larger than a certain size mixed in the soil, such as demolished rubble at a construction site, mixed large and small rocks at a quarry, and left behind at a farm or clearing site. Objects such as fallen rocks must be removed as a nuisance. Up until now, the earth and sand have been dug up using power shovels, backhoes, spas, etc., collected in small mounds, and then rotated. They were removed using a sieve or vibrating sieve, or if they were large, they were scooped up individually with a backhoe, etc., but recently the bottom plate of the backhoe bucket has been formed into a hawk-shaped piece with a sieving function, and it has been removed specifically for this purpose. Some companies are starting to use buckets to scoop up dirt and sieve it to a certain size.

This recently adopted fork-shaped bucket developed exclusively for sieves has a fork member that makes up the fork part.
It is formed by forming and processing a thick flat steel plate into an inverted "C" shape with the sides, and it takes a considerable amount of time and effort to manufacture the fork member, and a large amount of steel is used. As a result, the dedicated bucket that is formed has to be extremely expensive and heavy.

If it is a special purpose machine and is expensive, even if it is useful, it will be difficult to use it temporarily, and in the end, we will just continue to use the same old methods. Therefore, it remains impossible to improve the efficiency of this type of work.

Therefore, in this invention, in response to the above situation, we have developed a bucket with a new structure that makes it possible to extremely easily manufacture a fork-shaped bucket dedicated to sieving, which separates only items of a predetermined size mixed in the soil. We worked on developing it and finally succeeded in making it a reality.

(Structure of the Invention) As clearly understood from the representative embodiments shown in the drawings, the sieve-only bucket of the present invention has left and right side plates 2, 2,
The fork part 1 arranged between the two side plates 2 and 2, the top plate 3 that connects and integrates the left and right side plates 2, 2 and the upper ends of the fork part 1, and the arm connection part 4 formed on the outer surface of the top plate 3. In the bucket body consisting of
The fork member 11.11°... which constitutes the
A plurality of steel bars 11a, llb, . . ., formed in a similar shape with a side profile of an inverted "C" shape are stacked one on top of the other, and key points are welded at 12.12 degrees.・The basic structure is that they are integrated and each tip is formed into a sharp part 13.13... which is cut downward. be.

Since the side surface of the fork member 11 constituting the fork portion 1 is formed into a substantially inverted "C" shape, the left and right side plates 2 are naturally formed into a shape substantially similar to that shape. And those fork members 11, 11.・・・・・・
... are arranged between the left and right side plates 2, 2 at intervals according to the size of the items to be sieved, and the fork members 11, 11
The upper end of each arc-shaped part of ゜......
It is extended to the lower edge of the top plate 3 or the back thereof, and then welded and integrated.

A plurality of steel bars 11a and llb that constitute the fork member 11
. . . As shown in the exploded perspective view in Figure 2, the lateral shapes formed in the shape of an inverted "C" are superimposed, but in the embodiment, these are stacked vertically. Although shown in this assembled form, the fork member 11
, 11°...If it is necessary to further increase the strength of each individual steel rod 11a, llb...
This can be achieved by increasing the number of -.

Also, the steel bars 11a, llb...
... are welded at key points as shown in the side view of Figure 3.12.12. ... Although it will be integrated, from the viewpoint of manufacturing cost etc., it is necessary to take care to keep the strength to a minimum.

(Preferred Embodiment 1) This example is for reinforcing fork members 11, 11, etc., and a reinforcing member 14 is installed horizontally between the left and right side plates 2, 2, and the reinforcing member 14 and each fork member 11
．． 11. Weld both at the intersection with 1
5. It is an integrated bucket exclusively for sieves.

The reinforcing member 14, which is passed between the left and right side plates 2, 2, is connected to the fork members 11, 11.・・・・・・This is to prevent the distance between the horizontal parts from deforming or warping downward during work, and can be formed with a steel rod as shown in the figure, or with a flat plate as appropriate. Made of steel plate.

In the embodiment shown in the drawings, only one reinforcing member 14 is placed in a relatively recessed location, but this is because the fork members 11, 11.・・・・・・
Although this structure is designed to improve the penetration of the tip into the soil, when it is necessary to increase the overall strength even if some of these functions are sacrificed, this reinforcing member 14 can be used twice. It is also possible to arrange more than one book.

(Preferred Embodiment 2) The following example is an example to further reinforce the above-mentioned embodiment, and is adopted when the width of the bucket is relatively wide, as shown in the perspective view of Figure 1. It becomes advantageous.

That is, a reinforcing frame 5 supported by the top plate 3 is disposed approximately at the center between the left and right side plates 2, 2, and the reinforcing member 14 is supported by the reinforcing frame 5 and the left and right side plates 2.2. The reinforcing member 14 and each fork member 11, 1 are installed horizontally.
1. Melt both at the intersection with 615,
15. ... It is an integrated bucket exclusively for sieves.

In the reinforcing frame 5, the reinforcing member 14 is attached to the left and right side plates 2.2.
As a result, the fork member 11.11. Since this is to prevent the .
In other words, if the width of the bucket is not very large,
It may also be omitted.

(Preferred Embodiment 3) The last example relates to the structure of the fork member 11 itself, and is shown in FIG.
As seen in sectional view B, the fork member 11 constituting the fork portion 1 has a smaller cross-sectional shape as the fork member 11 is stacked upward.

According to this example, the cross section of the fork member becomes a trapezoidal cross section as a whole, and the fork member 1
1.11. It is possible to improve the penetration of ... into the earth and sand.

(Function and Effect) The sieve-only bucket of the present invention having the above-mentioned configuration first of all allows the steel bars 11a, 11b...
The steel rods 11a, 11b, etc. are bent and formed into similar shapes according to the overlap, and placed one on top of the other on a flat surface such as a floor, and the important points are Welding 12, 12°...Fork members 11, 11. of the same shape as desired in the manufacturing process of just integrating. ...
... can be mass-produced, and the rest are mass-produced fork members 11.11. . . . are arranged between the left and right side plates 2.2 at predetermined intervals, and by fixing them, a bucket exclusively for the specified sieve can be easily completed. No.

This feature makes it far more economical than the conventional method of forming and processing thick flat steel plates, and is an extremely advantageous condition for providing it as a special-purpose machine.

In addition, steel rods 11a, llb, . . . with a circular cross section are used.
Due to the cross-sectional characteristics of stacking the two on top of each other (i.e., the cross section of the member is similar to that of H-beam steel), the moment of inertia per unit weight is larger than that of the conventional flat steel plate. If a bucket with high structural strength is achieved, the amount of steel used will be reduced, making it possible to create a bucket that is more economical and lighter.

In particular, when the structure is formed by combining the reinforcing member 14, the reinforcing frame 5, etc., the above-mentioned features are further enhanced in terms of the overall structural strength, and the conditions as a special-purpose machine are even more advantageous. Become.

On the other hand, the steel rods 11a and lib that constitute the fork member 11
. . . The cross section of the fork members 11, 11° . It is possible to increase the penetration effect of the bucket, which makes it possible to obtain a bucket with better workability, and also to reduce the resistance applied to the fork part 1 even a little, thereby increasing the durability of the fork part 1. Become.

As mentioned above, the sieve-specific bucket of this invention has a simple structure and is easy to manufacture, making it far more economical and easier to operate than conventional ones. Since it can be provided as a specialized machine for this type of work, it is expected that it will be widely used as a specialized machine for this type of work.

[Brief explanation of drawings]

The drawings are based on an embodiment representative of the present invention; FIG. 1 is an overall perspective view thereof, FIG. 2 is an exploded perspective view of the fork member, and FIG. 3 is an integrated state of the fork member. In the side view of FIG. 4, (a) is the fork member A to A.
The sectional view (b) is the BB sectional view. 1... Fork part, 11... Fork member, 12
...Same welded part, 13...Same sharp part, 14...Same reinforcing member, 15...Same welded part, 2...Right and left side plates, 3
...Top plate, 4...Arm connection part, 5...Reinforcement frame. Figure Figure Figure Figure (a) (b) Figure

Claims (1)

[Claims] 1. Left and right side plates, a fork portion disposed between the left and right side plates,
In the bucket body, which consists of a top plate that connects and integrates the left and right side plates and the upper ends of the fork parts, and an arm connection part on the outer surface of the top plate, the fork members that make up the fork part have a lateral shape with an inverted "S" shape. It is made by stacking multiple steel rods formed in similar shapes vertically, welding and integrating them at key points, and forming a sharp point with each tip pointed downward. A bucket exclusively for sifting. 2. A bucket exclusively for sieves according to claim 1, wherein a reinforcing member is installed horizontally between the left and right side plates, and the reinforcing member and each fork member are welded and integrated at the intersections thereof. 3. A reinforcing frame supported by the top plate is arranged approximately in the center between the left and right side plates, a reinforcing member is installed horizontally so as to be supported by the reinforcing frame and the left and right side plates, and the reinforcing member and each fork are connected to each other. A sieve-dedicated bucket according to claim 1, wherein the two members are welded and integrated at the intersection with the member. 4. The sieve-dedicated bucket according to any one of claims 1 to 3, wherein the fork members constituting the fork portion have a smaller cross-sectional shape as the members are stacked upwardly.